Preheat oven to 375-degrees Fahrenheit (190 degrees Celsius).
Cover the baking sheets with foil and add the racks to each. Spray each liberally with cooking spray.
Place the ribs onto the racks and sprinkle both sides of the ribs evenly with 1 teaspoon salt, and ½ teaspoon black pepper. Roast the ribs in the preheated oven for 45 minutes.
Meanwhile, add the molasses, lemon juice, yellow mustard, red wine vinegar, Worcestershire sauce, hot sauce, liquid smoke, and the remaining salt and pepper to a 3 quart saucepan, and heat over medium heat. Bring the sauce to a low boil, stirring occasionally. Continue cooking and stirring until the sauce reduces and thickens (approximately 20 minutes).
After the first 45 minute roast, remove the ribs from the oven and liberally brush the thickened BBQ sauce on both sides of the ribs. Return the ribs to the oven and continue roasting for an additional 30 minutes.
Remove the ribs again, and brush with BBQ sauce. Return the ribs to the oven for a final 20 minute roast until they reach an internal temperature of 150-155 degrees (F) on an instant read thermometer. Brush for a final time with remaining sauce, garnish with lemon slices and minced chives (optional) and serve.
Notes
Store any leftovers in an airtight container in the refrigerator for up to 5 days.May be frozen. Cool completely and store the ribs in an airtight freezer container or bag and freeze for up to 4 months. Thaw overnight in the refrigerator and reheat (covered with foil) in an air fryer or oven until hot.